Can't get MKV to encode lossless Audio - HELP!!

[beat-breaker]

I've just started with Make MKV so just getting up to speed. In general it seems very easy to use, except that I can't get it to rip the lossless audio files.

I'm all set-up to stream multichannel lossless PCM Audio to my Hi-Fi (so decoding by the computer, not the AV Receiver).
This works fine when playing Bluray discs or Bluray ISO's both via Total Media Theater / WMC using TMT front end and via my PS3 too.

But when I make an MKV of a Bluray which contains lossless audio the following happens:
- read the disc etc etc
- I select a title to rip, and click to expand details I see Video type (Mpeg 4 in this case)
- then underneath the video info, there is a tick box (not checked) saying Audio DTS-HD lossless
- I can expland that further and get another tick box (checked this time) saying DTS 3/2+1

I then manually check the DTS lossless box, and make MKV
When I play back I don't get lossless audio, I get the DTS one.
When I look at several movies, it's the same story the lossless box's are never checked and if I check them and rip I don't get lossless.



What I want to have is a perfectly lossless copy (audio and video) of a Bluray movie. I want just the movie not anything else, hence trying to avoid ISO's and wanting to use MKV's

I'm assuming I'm doing something stupid, but can someone tell me what please!!

[crowfax]

It sounds like an issue with the player, not the conversion. If you told MakeMKV to take the lossless stream from the disc then it has. It doesn't have the ability to mess with the streams. I can tell you that if you tick the DTS-HD box you don't need to keep the DTS box ticked, as it's part of the DTS-HD stream anyway, so you're just increasing the space for no gain.

You should check that your playback software can handle DTS-HD from MKV files, that's all I can think the problem might be. Perhaps someone who has more experience with DTS-HD will post soon to help.

[Romansh]

When I play back I don't get lossless audio, I get the DTS one.

1) how do you determine whether you're getting the lossless track vs. the lossy DTS core?

2) what are you using to play your MKV file?

[beat-breaker]

I've tried using TotalMedia Theater and WMP using the DivX Plus codecs that allow MKV to play on WMP. I can play Blurays on either player and get the lossless audio as Multichannel PCM.

I check the signal by looking at the info display on the player and also I can look at the signal input details on my AV Receiver which shows me bit rate, depth, number channels. When it's DTS or DD it will decode, anything lossless I have to stream it MPCM so the player has to decode the HD Audio.

[Romansh]

You need to take the player out of the equation by using something like MediaInfo to check whether the MKV files include the HD audio or not.

For DTS-HD you'll need to use the official GUI under OS X too (MediaInfo Mac / Media Inspector doesn't provide enough information to differentiate DTS-HD from DTS, especially in 0.7.36.0 and earlier).

Edited: fix inaccurate statement as per the conversation below.

[mike admin]

For DTS-HD you'll need something that specifies DTS vs. DTS-HD (MediaInfo doesn't),

Are you sure? Last time I've checked, mediainfo showed all details about DTS-HD properly. In fact, it's the only open source tool I'm aware of that can parse and display DTS-HD sub-headers.

[Romansh]

For DTS-HD you'll need something that specifies DTS vs. DTS-HD (MediaInfo doesn't),

Are you sure? Last time I've checked, mediainfo showed all details about DTS-HD properly. In fact, it's the only open source tool I'm aware of that can parse and display DTS-HD sub-headers.

Doh! It looks like the GUI I've been using (MediaInfo Mac, now Media Inspector) is to blame. It's preferred to the official GUI by quite a few Mac users though.

Sorry about the confusion.